Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Welcoming September, Bluffton notes an average high-temperature of a still moderately hot 73.8°F (23.2°C), nearly consistent with August's 78.6°F (25.9°C). During September, the temperature is averaged to a low of 55.6°F (13.1°C) at night.Humidity
In September, the average relative humidity is 79%.Rainfall
In Bluffton, Ohio, in September, it is raining for 9.2 days, with typically 0.59" (15mm) of accumulated precipitation. Throughout the year, there are 120.1 rainfall days, and 9.49" (241mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Bluffton, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 7:03 am and sunset at 8:07 pm. On the last day of September, sunrise is at 7:31 am and sunset at 7:18 pm EDT.
Sunshine
In September, the average sunshine is 7.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 4 during September leads to these advisories:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Bluffton have in September?
How high is the UV index in September?
Average temperature in September
Bluffton, OH
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in September: 55.6°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Bluffton, OH
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Bluffton, OH
- Average wind speed in September: 6.7mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in September
Bluffton, OH
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Bluffton, OH
- Average rainfall in September: 0.59"
The wettest month (with the highest rainfall) is May (1.22").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in September
Bluffton, OH
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (5.1 days).
Average snowfall in September
Bluffton, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Bluffton, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bluffton, OH
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Bluffton, OH
- Average sunshine days in September: 18.3 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in September
Bluffton, OH
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Bluffton, OH
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in September
Bluffton, OH
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are August and September (5mi).
Bluffton, Ohio, USA
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